Definition: In chemistry, an isochore or isocorine is a type of chemical element that has two isotopes. Specifically, it refers to a chemical element with two stable isotopes, which are identical except for their atomic number and mass number. Isotopes are atoms with the same number of protons but different numbers of neutrons. An example of an isochore is lithium (Li). Lithium has two isotopes: 1 Li and 2 Li. These isotopes
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